GIIA’s growth in 2025 and highlights from our Annual Report
In 2025, GIIA further strengthened its position as the global voice for the world’s leading investors in infrastructure.
Our Annual Report sets out how our membership has continued to grow year-on-year, enabling our members to further increase their global connections. It highlights our ever-expanding global advocacy programs, and the industry intelligence that we provide to our membership.
We have welcomed 14 new members, ending the year with a total of 126 member organizations, and with investors representing a total of US$2.2 trillion of infrastructure assets under management.
This continued expansion is reflected in our advocacy activities, as we pushed new boundaries with a White Paper on the future of U.S infrastructure, a ‘reset’ of UK water regulation, and a programme of activities within the leading member states of the European Union. We also further expanded our footprint in APAC.
Throughout 2025 we delivered on our mission to enable connections, with a record number of more than 20 member events across the world.
During 2026 we will be marking our 10th anniversary, and laying the foundations for the next 10 years. Our ambition is further growth, and providing yet more value for our members through our advocacy, intelligence and connection opportunities.
We would like to thank our members for their ongoing support, and we look forward to making 2026 the most impactful year yet for GIIA.
Find out more about our activities in 2025 via the e-book format of our Annual Report (below), or download the PDF at the top right of this page.